Cryptographic method for mobile phone communication
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- BEIJING ZHIGU TECH SERVICE
- Publication Date
- 2005-05-04
Smart Images
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Abstract
Description
technical field
[0001] The invention relates to a security method, in particular to a security method for a mobile phone. Background technique
[0002] Since the development of mobile phones, it has evolved from the original medium of voice transmission to today's function of information transmission. As far as the type of data transmission is concerned, the transmission method of the first generation of mobile phones is an analog specification, and the transmission content is mainly voice, and the confidentiality and penetration effect are not ideal. The transmission method of the second-generation mobile phone is digital transmission. After the voice is digitized and encoded, it is transmitted in the form of packets, which greatly improves the confidentiality.
[0003] However, with the advent of the Internet era, the demand for digital networking and wireless networking is gradually increasing. In the concept of information appliances and IA products, mobile phones are p...